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SAE-AISI 1064 Steel vs. ASTM A372 Grade A Steel

Both SAE-AISI 1064 steel and ASTM A372 grade A steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1064 steel and the bottom bar is ASTM A372 grade A steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 13
22
Fatigue Strength, MPa 300
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 430 to 440
320
Tensile Strength: Ultimate (UTS), MPa 720 to 730
500
Tensile Strength: Yield (Proof), MPa 470 to 480
270

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
52
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 46
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 81
95
Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 630
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 26
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 25
16

Alloy Composition

Carbon (C), % 0.6 to 0.7
0 to 0.3
Iron (Fe), % 98.4 to 98.9
98.3 to 99.85
Manganese (Mn), % 0.5 to 0.8
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.010